A 3.3V and 5V Breadboard Power Supply Module with series diode, polarity reversal protection. The module can take 6.5V to 12V input and can produce 3.3V and +5V. Can also output 5V on USB connector and can also take input through USB connector.
The circuit board is connected to the battery negative B-, B + is the positive, do not connect reversed, connecting reversed will burn the board, the battery is connected in parallel welding, assembling battery. Note that the insulation between the battery and the circuit board, battery lead not to touch the circuit board, so as not to cause a short circuit.
This wireless Transceiver module is an easy and suitable module if you want to setup your wireless communication system with low cost!! This module can achieve a good balance between wireless transition performance and cost!You can easily add it with your own MCU/ARM/PIC/AVR/STM32 system!
PIR infrared sensor module is based on infrared technology, automatic control products. High sensitivity, high reliability, low power consumption, low voltage operation mode. Widely used in various auto-sensing electrical equipment, especially for battery-powered automatic control products.
Ultra-small size LM2596 DC-DC 3A adjustable step-down power supply module, DC-DC Buck Converter. Application areas: DIY mobile power, communications equipment, power supply, all kinds of size and weight for demanding occasions (such as model airplane, etc.).
The voltmeter wiring is simple, only need to pick two lines, the table reversal protection, reverse does not burn.The voltmeter start voltage is low, the red just 2.5V, just 2.7V Green, the blue just 3.0V will be able to measure correctly, start with the price of two-wire voltmeter voltage is the lowest anywhere in the world.
-Input voltage: 4.5-60 V, -Output voltage: (3-35 V) continuous adjustable (Suggest no-load debugging) -Output current: rated current 2A;3A(MAX) (need to plug heat sink), if the output power is higher than 15 W, advise to add the heat sink
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